DSP, PVDM & Media Resources

The Cisco High-Density Packet Voice Digital Signal Processor (DSP) Module (PVDM2) enables Cisco Integrated Services Routers to provide high-density voice connectivity, conferencing, and transcoding capabilities in Cisco IP Communications solutions. PVDM stands for packet voice DSP module; it is the Cisco product name for the module that provides digital signal processing resources to a system.Continue reading “DSP, PVDM & Media Resources”

Scanario#21 – VG224 Fax Issues

Customer reported a fault that several fax machines which were working fine last week have suddenly stopped working. All they were getting for incoming faxes was just the header. No content of the actual fax. Rule of thumb – anything which was working before and not working now means something must have changed. I jumpedContinue reading “Scanario#21 – VG224 Fax Issues”

Scenario#1 – VG224 – Strange DTMF behaviour

Problem description: One of my customer reported an issue with their VG224. All Polycom conference phones connected to the Vg224 were facing an strange issue of DTMF tones not recognized by PSTN. Users trying to get into a MeetMe conference were havingĀ  tough time as their pin was not getting recognised. Analysis & Observations: ThisContinue reading “Scenario#1 – VG224 – Strange DTMF behaviour”